Gearing for operating apparatus for mixing aeriform fluids



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0. C. WALWQRTH au H. SEYTBR. l GBARING POB, OPERATING APPARATUS PORMIXING AERIPORM PLUIDS.

No.`413,7744 l Patented Oct. 29, 1889.A

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G. WALWORTH 8v H. SE-YTR. y GEARI'NGIOR OPERATING APPARATUS FOR MIXINGABRIIQRM FLUIDS.

,Patented 001;. 29, 1889.

i UNITED .STATES 'PATENT OFFICE.

OALEB C. VVALVORTH AND HERMAN SEYTER, OF BOSTON, MASSACHUSETTS.

GI-ARING FOR OPERATING APPARATUS FOR MIXING AERIFORM FLUIDS.

SPECIFICATION forming part of Letters Patent No. 413,744, dated October29, 1889. App1iai0nt1edoa0b-er 22,1888. smart. 288,798. (No model.)

To ctZZ whom t may concern: 1

Be it known that we, CALEB O. WA LWORTH and HERMAN SEYTER, of Boston, inthe county of Suffolk and State of Massachusetts, have invented a newand useful Improvement in Gearing for Operating Apparatus for MixingAerform Fluids, which will, in connection with the accompanyingdrawings, be hereinafter fully described, and specifically defined inthe appended claims.

Figure 1 is atop plan View of an apparatus embodying our invention. Fig.2 is a front elevation of the apparatus shown in Fig. l. Fig. 3 is adetached sectional view showing the device employed to interlock thepinions with their actuating-shaft Fig. 4 is a transverse sectionthrough the parts shown in Fig. 3. Fig. 5 is a front elevation of one ofthe pinions shown in the other views.

This invention relates to and is an improvement upon the apparatus shownin -Unit-ed States Letters Patent No. 322,661,

issued to us on the 21st day of July, 1885, to which patent reference isto be had; and it consists in means whereby the relative velocity ofrotation of the two meter-wheels may. be differentiated to the necessarydegree during all the stages of exhausting the illuminatingpropertie'sfrom the'iluid in the carburetor, in order `that therequisite ratio or proportion of said properties and air may at alltimes be introduced into the mixer by said wheels to produce a fluid ofthe requisite illuminating power; and the invention consists in featuresof novelty hereinafter described, and pointed'out in the claims.

Owing to the fact that the hydrocarbon fluid, when first placed in theburied tank or carburetor, as it is termed, is very rich in hydrocarbon,and that said iiuid constantly parts with the same when the apparatus isin use, thus necessitating very frequent but slight changes in theproportions in which the fluid from the carburetor and the air shallenter the mixer, and as such changes are effected by differentiating therelative rotation of the vapor and air meter wheels, therefore it isnecessary that they be provided with such connectinggears as that saidchanges may be made in, an expeditious and convenient man ner and inslight degrecs.

In our said former patent one of the meter-wheels was at all timesdriven at a fixed velocity relative to the connecting shaft, while theother wheel could at will be differentiated in its rotation relative toboth the coacting wheel and said shaft; but such means of eecting saidchanges is insufficient. Nor is'it practical to provide a single gearhaving a sufficient number of circles of teeth to directly effect thenumerous requisite changes; hence we have not only provided means bywhich to differentiate the rotation of both `wheels relative to theconnecting-shaft, but

the gears employed for this purpose are Vso constructed that severalchanges in the relaa tive rotary movement of the wheels may be made foreach circle of gear-teeth that are `arranged upon the gears carried bysaid mea carburetor and said vapor-meter Wheel' through its hollow arborand a stuffing-box, An arbor,

in an old and well-known manner. c, projecting from the opposite side ofsaid meter-wheel, carries the manifold or multiple crown-gear e. Atubular conduit is shown at l), by which communication is made betweenan air-supply and said air-wheel through its hollow arbor and astufting-box, in an old and well-known manner. An arbor d, projectingfrom the opposite end of said air-wheel, carries the manifold ormultiple crown-gear f. The connecting-shaft is shown at g, mounted injournal-boxes fi, pivoted in hangers h, secured to frame D, and uponsai'dl shaft the pinions j, having hubs k, are arranged to fit closely,but slide freely, th ey being adj ustably interlocked therewith by meansof rings n, formed with an interior diameter greater than the externaldiameter of said hubs, and havn IOO ing a rigid pin p, secured in eachsaid ring, extending through hub k, and having a coiled spring q mountedupon it, a recess being formed in the hub, as shown, of such depth thatthe spring may be readily compressed therein, while in said ringopposite to pin p is rigidly secured a pin s, adapted to enter holes uin the shaft.

In Fig. 3 the pinion is shown as locked in position upon the shaft, andto change its p0- sition pressure is applied to the ring at pin p, thuscompressing spring q and forcing pin s out of hole u, (the pin enteringslot t in the shaft for that purpose only,) when the pinion may be movedon the shaft to the desired point and again interlocked therewith byreleasing the rin g and allowing the spring to act thereon, thus forcingpin s into the intended hole u. Y

Gears c f are each shown as formed with six circles of pin-like teeth,thus constituting a multiple crown gear-wheel, the outer row beingformed upon the outer face of peripheral flange c, that is formed atrightangles to the plane of the wheels, while the pinions are eachformed with peripheral teeth Z, adapted to engage the teeth in circles 28 4 5 6, as shown at e, Figs. l and 2, and with interior teeth m upontheir end or plane to engage circle l, as shown at wheel f, Figs. 1 and2.

In carrying our invention into practical effect we preferably employ thefollowing number of teeth in the several circles on wheels e f, to wit:circle l, eighty teeth; circle 2, sixty-four teeth; circle 3,forty-eight teeth; circle 4, thirty-six teeth; circle 5, twentyfourteeth, and circle G, sixteen teeth; while in pinions j there are sixteenperipheral teeth l and ten interior teeth m, which latter render theeighty teeth in circle l of the crownwheels e f equal to one hundred andtwentyeight teeth when used with a sixteen-tooth pinion. As a result ofsuch construction and proportions of the gears, while there are but sixchanges in each pair of gears, yet we effect twenty-three changes in therelative proportions of air and hydrocarbon delivered, respectively,from lthe generator and air-supply into the mixer, such changescommencing wit-h eighty-nine per cent. of air and eleven per cent. offluid from the carburetor and ternfinating at the other extreme witheleven per cent. of air and eighty-nineper cent. from the carburetor. Innone of said changes is the reduction of air more than seven per cent.and the average is less than four per cent., thus showing that thereduction in air admitted and the increase in fluid admitted from thecarburetor is so gradual that the richness in hydrocarbon of the lluidpassing from the mixer for illuminating purposes can be very closelygraduated, thus insuring the desired result. Y

As the method of causing the rotation of the meter-wheels, as also therequisite conduits from the air-supply and carburetor to said wheels,are old, common, and well known, it is not deemed necessary to show thesaine.

'Ve claim as our invention- 1. The combination, with arbors c and d,arranged to operate the wheels of a gas and air meter, of multiplecrown-wheels c f, sccured to the arbors c and d, respectively, and thecoacting pinions j, arranged upon a common shaft and provided withlocking and releasing devices, whereby they may be enmeshed with theseveral series or circles of teeth in their respective crown-wheels,substantially as specified.

2. The combination, with arbors c and d, arranged to operate the wheelsof a gas and air mixing meter, of multiple crown-wheels e f, secured tothe arbors c and d, respectively, and formed with a series of internalcircles of teeth, and a peripheral flange fn, having teeth thereonprojecting beyond the plane of the interior teeth, and pinions j,mounted upon a common shaft and formed with peripheral teeth l and acircle of interior teeth m, all substantially as specified.

3. The combination, with arbors c and d, arranged to operate the wheelsof a gas and air mixing meter, of multiple crown-wheelse f, secured tothe arbors c and d,respectively, and pinions j, mounted on shaft g,formed with longitudinal slot and duly-spaced holes u, rings n, theirpins p and s, and spring q, all constructed and arranged to operatesubstantially as specified.

CALEB C. NVALVORTH. HERMAN SEYTER.

Vitnesses:

T. W. PORTER, EUGENE l-IUMPHREY.

